Inefficient service from Vodacom

I am extremely unhappy with the service I have received from Vodacom. Due to signal issues I decided to change over to CellC. I run a business and can't afford to be offline regularly. So I asked them to transfer my number over to my new CellC contract and they have not done it. They were very quick to cut me off and now 5 days later they are saying it will take 7 - 14 working days to get the number transferred. I cannot afford not to be able to receive phone calls. I have my own business and it is crucial for all aspects of my business that I have access to a phone on my existing number. I have tried contacting Vodacom several times and each time they tell me something different. I have been on the phone to them for over 3 hours in the last 2 days and it has achieved nothing. Nobody seems to know what they are doing or how to help me. I can't believe how inefficient their service is! Highly disappointed and angry.